/* SPDX-License-Identifier: BSD-3-Clause * Copyright(c) 2019 Intel Corporation */ #include #include #include #include #include #include #include #include #include /* size of ring used for software copying between rx and tx. */ #define RTE_LOGTYPE_IOAT RTE_LOGTYPE_USER1 #define MAX_PKT_BURST 32 #define MEMPOOL_CACHE_SIZE 512 #define MIN_POOL_SIZE 65536U #define CMD_LINE_OPT_MAC_UPDATING "mac-updating" #define CMD_LINE_OPT_NO_MAC_UPDATING "no-mac-updating" #define CMD_LINE_OPT_PORTMASK "portmask" #define CMD_LINE_OPT_NB_QUEUE "nb-queue" #define CMD_LINE_OPT_COPY_TYPE "copy-type" #define CMD_LINE_OPT_RING_SIZE "ring-size" /* configurable number of RX/TX ring descriptors */ #define RX_DEFAULT_RINGSIZE 1024 #define TX_DEFAULT_RINGSIZE 1024 /* max number of RX queues per port */ #define MAX_RX_QUEUES_COUNT 8 struct rxtx_port_config { /* common config */ uint16_t rxtx_port; uint16_t nb_queues; /* for software copy mode */ struct rte_ring *rx_to_tx_ring; /* for IOAT rawdev copy mode */ uint16_t ioat_ids[MAX_RX_QUEUES_COUNT]; }; struct rxtx_transmission_config { struct rxtx_port_config ports[RTE_MAX_ETHPORTS]; uint16_t nb_ports; uint16_t nb_lcores; }; /* per-port statistics struct */ struct ioat_port_statistics { uint64_t rx[RTE_MAX_ETHPORTS]; uint64_t tx[RTE_MAX_ETHPORTS]; uint64_t tx_dropped[RTE_MAX_ETHPORTS]; uint64_t copy_dropped[RTE_MAX_ETHPORTS]; }; struct ioat_port_statistics port_statistics; struct total_statistics { uint64_t total_packets_dropped; uint64_t total_packets_tx; uint64_t total_packets_rx; uint64_t total_successful_enqueues; uint64_t total_failed_enqueues; }; typedef enum copy_mode_t { #define COPY_MODE_SW "sw" COPY_MODE_SW_NUM, #define COPY_MODE_IOAT "hw" COPY_MODE_IOAT_NUM, COPY_MODE_INVALID_NUM, COPY_MODE_SIZE_NUM = COPY_MODE_INVALID_NUM } copy_mode_t; /* mask of enabled ports */ static uint32_t ioat_enabled_port_mask; /* number of RX queues per port */ static uint16_t nb_queues = 1; /* MAC updating enabled by default. */ static int mac_updating = 1; /* hardare copy mode enabled by default. */ static copy_mode_t copy_mode = COPY_MODE_IOAT_NUM; /* size of IOAT rawdev ring for hardware copy mode or * rte_ring for software copy mode */ static unsigned short ring_size = 2048; /* global transmission config */ struct rxtx_transmission_config cfg; /* configurable number of RX/TX ring descriptors */ static uint16_t nb_rxd = RX_DEFAULT_RINGSIZE; static uint16_t nb_txd = TX_DEFAULT_RINGSIZE; static volatile bool force_quit; /* ethernet addresses of ports */ static struct rte_ether_addr ioat_ports_eth_addr[RTE_MAX_ETHPORTS]; static struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; struct rte_mempool *ioat_pktmbuf_pool; /* Print out statistics for one port. */ static void print_port_stats(uint16_t port_id) { printf("\nStatistics for port %u ------------------------------" "\nPackets sent: %34"PRIu64 "\nPackets received: %30"PRIu64 "\nPackets dropped on tx: %25"PRIu64 "\nPackets dropped on copy: %23"PRIu64, port_id, port_statistics.tx[port_id], port_statistics.rx[port_id], port_statistics.tx_dropped[port_id], port_statistics.copy_dropped[port_id]); } /* Print out statistics for one IOAT rawdev device. */ static void print_rawdev_stats(uint32_t dev_id, uint64_t *xstats, unsigned int *ids_xstats, uint16_t nb_xstats, struct rte_rawdev_xstats_name *names_xstats) { uint16_t i; printf("\nIOAT channel %u", dev_id); for (i = 0; i < nb_xstats; i++) printf("\n\t %s: %*"PRIu64, names_xstats[ids_xstats[i]].name, (int)(37 - strlen(names_xstats[ids_xstats[i]].name)), xstats[i]); } static void print_total_stats(struct total_statistics *ts) { printf("\nAggregate statistics ===============================" "\nTotal packets Tx: %24"PRIu64" [pps]" "\nTotal packets Rx: %24"PRIu64" [pps]" "\nTotal packets dropped: %19"PRIu64" [pps]", ts->total_packets_tx, ts->total_packets_rx, ts->total_packets_dropped); if (copy_mode == COPY_MODE_IOAT_NUM) { printf("\nTotal IOAT successful enqueues: %8"PRIu64" [enq/s]" "\nTotal IOAT failed enqueues: %12"PRIu64" [enq/s]", ts->total_successful_enqueues, ts->total_failed_enqueues); } printf("\n====================================================\n"); } /* Print out statistics on packets dropped. */ static void print_stats(char *prgname) { struct total_statistics ts, delta_ts; uint32_t i, port_id, dev_id; struct rte_rawdev_xstats_name *names_xstats; uint64_t *xstats; unsigned int *ids_xstats, nb_xstats; char status_string[120]; /* to print at the top of the output */ int status_strlen; int ret; const char clr[] = { 27, '[', '2', 'J', '\0' }; const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' }; status_strlen = snprintf(status_string, sizeof(status_string), "%s, ", prgname); status_strlen += snprintf(status_string + status_strlen, sizeof(status_string) - status_strlen, "Worker Threads = %d, ", rte_lcore_count() > 2 ? 2 : 1); status_strlen += snprintf(status_string + status_strlen, sizeof(status_string) - status_strlen, "Copy Mode = %s,\n", copy_mode == COPY_MODE_SW_NUM ? COPY_MODE_SW : COPY_MODE_IOAT); status_strlen += snprintf(status_string + status_strlen, sizeof(status_string) - status_strlen, "Updating MAC = %s, ", mac_updating ? "enabled" : "disabled"); status_strlen += snprintf(status_string + status_strlen, sizeof(status_string) - status_strlen, "Rx Queues = %d, ", nb_queues); status_strlen += snprintf(status_string + status_strlen, sizeof(status_string) - status_strlen, "Ring Size = %d\n", ring_size); /* Allocate memory for xstats names and values */ ret = rte_rawdev_xstats_names_get( cfg.ports[0].ioat_ids[0], NULL, 0); if (ret < 0) return; nb_xstats = (unsigned int)ret; names_xstats = malloc(sizeof(*names_xstats) * nb_xstats); if (names_xstats == NULL) { rte_exit(EXIT_FAILURE, "Error allocating xstat names memory\n"); } rte_rawdev_xstats_names_get(cfg.ports[0].ioat_ids[0], names_xstats, nb_xstats); ids_xstats = malloc(sizeof(*ids_xstats) * 2); if (ids_xstats == NULL) { rte_exit(EXIT_FAILURE, "Error allocating xstat ids_xstats memory\n"); } xstats = malloc(sizeof(*xstats) * 2); if (xstats == NULL) { rte_exit(EXIT_FAILURE, "Error allocating xstat memory\n"); } /* Get failed/successful enqueues stats index */ ids_xstats[0] = ids_xstats[1] = nb_xstats; for (i = 0; i < nb_xstats; i++) { if (!strcmp(names_xstats[i].name, "failed_enqueues")) ids_xstats[0] = i; else if (!strcmp(names_xstats[i].name, "successful_enqueues")) ids_xstats[1] = i; if (ids_xstats[0] < nb_xstats && ids_xstats[1] < nb_xstats) break; } if (ids_xstats[0] == nb_xstats || ids_xstats[1] == nb_xstats) { rte_exit(EXIT_FAILURE, "Error getting failed/successful enqueues stats index\n"); } memset(&ts, 0, sizeof(struct total_statistics)); while (!force_quit) { /* Sleep for 1 second each round - init sleep allows reading * messages from app startup. */ sleep(1); /* Clear screen and move to top left */ printf("%s%s", clr, topLeft); memset(&delta_ts, 0, sizeof(struct total_statistics)); printf("%s", status_string); for (i = 0; i < cfg.nb_ports; i++) { port_id = cfg.ports[i].rxtx_port; print_port_stats(port_id); delta_ts.total_packets_dropped += port_statistics.tx_dropped[port_id] + port_statistics.copy_dropped[port_id]; delta_ts.total_packets_tx += port_statistics.tx[port_id]; delta_ts.total_packets_rx += port_statistics.rx[port_id]; if (copy_mode == COPY_MODE_IOAT_NUM) { uint32_t j; for (j = 0; j < cfg.ports[i].nb_queues; j++) { dev_id = cfg.ports[i].ioat_ids[j]; rte_rawdev_xstats_get(dev_id, ids_xstats, xstats, 2); print_rawdev_stats(dev_id, xstats, ids_xstats, 2, names_xstats); delta_ts.total_failed_enqueues += xstats[ids_xstats[0]]; delta_ts.total_successful_enqueues += xstats[ids_xstats[1]]; } } } delta_ts.total_packets_tx -= ts.total_packets_tx; delta_ts.total_packets_rx -= ts.total_packets_rx; delta_ts.total_packets_dropped -= ts.total_packets_dropped; delta_ts.total_failed_enqueues -= ts.total_failed_enqueues; delta_ts.total_successful_enqueues -= ts.total_successful_enqueues; printf("\n"); print_total_stats(&delta_ts); ts.total_packets_tx += delta_ts.total_packets_tx; ts.total_packets_rx += delta_ts.total_packets_rx; ts.total_packets_dropped += delta_ts.total_packets_dropped; ts.total_failed_enqueues += delta_ts.total_failed_enqueues; ts.total_successful_enqueues += delta_ts.total_successful_enqueues; } free(names_xstats); free(xstats); free(ids_xstats); } static void update_mac_addrs(struct rte_mbuf *m, uint32_t dest_portid) { struct rte_ether_hdr *eth; void *tmp; eth = rte_pktmbuf_mtod(m, struct rte_ether_hdr *); /* 02:00:00:00:00:xx - overwriting 2 bytes of source address but * it's acceptable cause it gets overwritten by rte_ether_addr_copy */ tmp = ð->d_addr.addr_bytes[0]; *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dest_portid << 40); /* src addr */ rte_ether_addr_copy(&ioat_ports_eth_addr[dest_portid], ð->s_addr); } static inline void pktmbuf_sw_copy(struct rte_mbuf *src, struct rte_mbuf *dst) { /* Copy packet metadata */ rte_memcpy(&dst->rearm_data, &src->rearm_data, offsetof(struct rte_mbuf, cacheline1) - offsetof(struct rte_mbuf, rearm_data)); /* Copy packet data */ rte_memcpy(rte_pktmbuf_mtod(dst, char *), rte_pktmbuf_mtod(src, char *), src->data_len); } static uint32_t ioat_enqueue_packets(struct rte_mbuf **pkts, uint32_t nb_rx, uint16_t dev_id) { int ret; uint32_t i; struct rte_mbuf *pkts_copy[MAX_PKT_BURST]; const uint64_t addr_offset = RTE_PTR_DIFF(pkts[0]->buf_addr, &pkts[0]->rearm_data); ret = rte_mempool_get_bulk(ioat_pktmbuf_pool, (void *)pkts_copy, nb_rx); if (unlikely(ret < 0)) rte_exit(EXIT_FAILURE, "Unable to allocate memory.\n"); for (i = 0; i < nb_rx; i++) { /* Perform data copy */ ret = rte_ioat_enqueue_copy(dev_id, pkts[i]->buf_iova - addr_offset, pkts_copy[i]->buf_iova - addr_offset, rte_pktmbuf_data_len(pkts[i]) + addr_offset, (uintptr_t)pkts[i], (uintptr_t)pkts_copy[i], 0 /* nofence */); if (ret != 1) break; } ret = i; /* Free any not enqueued packets. */ rte_mempool_put_bulk(ioat_pktmbuf_pool, (void *)&pkts[i], nb_rx - i); rte_mempool_put_bulk(ioat_pktmbuf_pool, (void *)&pkts_copy[i], nb_rx - i); return ret; } /* Receive packets on one port and enqueue to IOAT rawdev or rte_ring. */ static void ioat_rx_port(struct rxtx_port_config *rx_config) { uint32_t nb_rx, nb_enq, i, j; struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; for (i = 0; i < rx_config->nb_queues; i++) { nb_rx = rte_eth_rx_burst(rx_config->rxtx_port, i, pkts_burst, MAX_PKT_BURST); if (nb_rx == 0) continue; port_statistics.rx[rx_config->rxtx_port] += nb_rx; if (copy_mode == COPY_MODE_IOAT_NUM) { /* Perform packet hardware copy */ nb_enq = ioat_enqueue_packets(pkts_burst, nb_rx, rx_config->ioat_ids[i]); if (nb_enq > 0) rte_ioat_do_copies(rx_config->ioat_ids[i]); } else { /* Perform packet software copy, free source packets */ int ret; struct rte_mbuf *pkts_burst_copy[MAX_PKT_BURST]; ret = rte_mempool_get_bulk(ioat_pktmbuf_pool, (void *)pkts_burst_copy, nb_rx); if (unlikely(ret < 0)) rte_exit(EXIT_FAILURE, "Unable to allocate memory.\n"); for (j = 0; j < nb_rx; j++) pktmbuf_sw_copy(pkts_burst[j], pkts_burst_copy[j]); rte_mempool_put_bulk(ioat_pktmbuf_pool, (void *)pkts_burst, nb_rx); nb_enq = rte_ring_enqueue_burst( rx_config->rx_to_tx_ring, (void *)pkts_burst_copy, nb_rx, NULL); /* Free any not enqueued packets. */ rte_mempool_put_bulk(ioat_pktmbuf_pool, (void *)&pkts_burst_copy[nb_enq], nb_rx - nb_enq); } port_statistics.copy_dropped[rx_config->rxtx_port] += (nb_rx - nb_enq); } } /* Transmit packets from IOAT rawdev/rte_ring for one port. */ static void ioat_tx_port(struct rxtx_port_config *tx_config) { uint32_t i, j, nb_dq = 0; struct rte_mbuf *mbufs_src[MAX_PKT_BURST]; struct rte_mbuf *mbufs_dst[MAX_PKT_BURST]; for (i = 0; i < tx_config->nb_queues; i++) { if (copy_mode == COPY_MODE_IOAT_NUM) { /* Deque the mbufs from IOAT device. */ nb_dq = rte_ioat_completed_copies( tx_config->ioat_ids[i], MAX_PKT_BURST, (void *)mbufs_src, (void *)mbufs_dst); } else { /* Deque the mbufs from rx_to_tx_ring. */ nb_dq = rte_ring_dequeue_burst( tx_config->rx_to_tx_ring, (void *)mbufs_dst, MAX_PKT_BURST, NULL); } if ((int32_t) nb_dq <= 0) return; if (copy_mode == COPY_MODE_IOAT_NUM) rte_mempool_put_bulk(ioat_pktmbuf_pool, (void *)mbufs_src, nb_dq); /* Update macs if enabled */ if (mac_updating) { for (j = 0; j < nb_dq; j++) update_mac_addrs(mbufs_dst[j], tx_config->rxtx_port); } const uint16_t nb_tx = rte_eth_tx_burst( tx_config->rxtx_port, 0, (void *)mbufs_dst, nb_dq); port_statistics.tx[tx_config->rxtx_port] += nb_tx; /* Free any unsent packets. */ if (unlikely(nb_tx < nb_dq)) rte_mempool_put_bulk(ioat_pktmbuf_pool, (void *)&mbufs_dst[nb_tx], nb_dq - nb_tx); } } /* Main rx processing loop for IOAT rawdev. */ static void rx_main_loop(void) { uint16_t i; uint16_t nb_ports = cfg.nb_ports; RTE_LOG(INFO, IOAT, "Entering main rx loop for copy on lcore %u\n", rte_lcore_id()); while (!force_quit) for (i = 0; i < nb_ports; i++) ioat_rx_port(&cfg.ports[i]); } /* Main tx processing loop for hardware copy. */ static void tx_main_loop(void) { uint16_t i; uint16_t nb_ports = cfg.nb_ports; RTE_LOG(INFO, IOAT, "Entering main tx loop for copy on lcore %u\n", rte_lcore_id()); while (!force_quit) for (i = 0; i < nb_ports; i++) ioat_tx_port(&cfg.ports[i]); } /* Main rx and tx loop if only one slave lcore available */ static void rxtx_main_loop(void) { uint16_t i; uint16_t nb_ports = cfg.nb_ports; RTE_LOG(INFO, IOAT, "Entering main rx and tx loop for copy on" " lcore %u\n", rte_lcore_id()); while (!force_quit) for (i = 0; i < nb_ports; i++) { ioat_rx_port(&cfg.ports[i]); ioat_tx_port(&cfg.ports[i]); } } static void start_forwarding_cores(void) { uint32_t lcore_id = rte_lcore_id(); RTE_LOG(INFO, IOAT, "Entering %s on lcore %u\n", __func__, rte_lcore_id()); if (cfg.nb_lcores == 1) { lcore_id = rte_get_next_lcore(lcore_id, true, true); rte_eal_remote_launch((lcore_function_t *)rxtx_main_loop, NULL, lcore_id); } else if (cfg.nb_lcores > 1) { lcore_id = rte_get_next_lcore(lcore_id, true, true); rte_eal_remote_launch((lcore_function_t *)rx_main_loop, NULL, lcore_id); lcore_id = rte_get_next_lcore(lcore_id, true, true); rte_eal_remote_launch((lcore_function_t *)tx_main_loop, NULL, lcore_id); } } /* Display usage */ static void ioat_usage(const char *prgname) { printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n" " -p --portmask: hexadecimal bitmask of ports to configure\n" " -q NQ: number of RX queues per port (default is 1)\n" " --[no-]mac-updating: Enable or disable MAC addresses updating (enabled by default)\n" " When enabled:\n" " - The source MAC address is replaced by the TX port MAC address\n" " - The destination MAC address is replaced by 02:00:00:00:00:TX_PORT_ID\n" " -c --copy-type CT: type of copy: sw|hw\n" " -s --ring-size RS: size of IOAT rawdev ring for hardware copy mode or rte_ring for software copy mode\n", prgname); } static int ioat_parse_portmask(const char *portmask) { char *end = NULL; unsigned long pm; /* Parse hexadecimal string */ pm = strtoul(portmask, &end, 16); if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) return -1; return pm; } static copy_mode_t ioat_parse_copy_mode(const char *copy_mode) { if (strcmp(copy_mode, COPY_MODE_SW) == 0) return COPY_MODE_SW_NUM; else if (strcmp(copy_mode, COPY_MODE_IOAT) == 0) return COPY_MODE_IOAT_NUM; return COPY_MODE_INVALID_NUM; } /* Parse the argument given in the command line of the application */ static int ioat_parse_args(int argc, char **argv, unsigned int nb_ports) { static const char short_options[] = "p:" /* portmask */ "q:" /* number of RX queues per port */ "c:" /* copy type (sw|hw) */ "s:" /* ring size */ ; static const struct option lgopts[] = { {CMD_LINE_OPT_MAC_UPDATING, no_argument, &mac_updating, 1}, {CMD_LINE_OPT_NO_MAC_UPDATING, no_argument, &mac_updating, 0}, {CMD_LINE_OPT_PORTMASK, required_argument, NULL, 'p'}, {CMD_LINE_OPT_NB_QUEUE, required_argument, NULL, 'q'}, {CMD_LINE_OPT_COPY_TYPE, required_argument, NULL, 'c'}, {CMD_LINE_OPT_RING_SIZE, required_argument, NULL, 's'}, {NULL, 0, 0, 0} }; const unsigned int default_port_mask = (1 << nb_ports) - 1; int opt, ret; char **argvopt; int option_index; char *prgname = argv[0]; ioat_enabled_port_mask = default_port_mask; argvopt = argv; while ((opt = getopt_long(argc, argvopt, short_options, lgopts, &option_index)) != EOF) { switch (opt) { /* portmask */ case 'p': ioat_enabled_port_mask = ioat_parse_portmask(optarg); if (ioat_enabled_port_mask & ~default_port_mask || ioat_enabled_port_mask <= 0) { printf("Invalid portmask, %s, suggest 0x%x\n", optarg, default_port_mask); ioat_usage(prgname); return -1; } break; case 'q': nb_queues = atoi(optarg); if (nb_queues == 0 || nb_queues > MAX_RX_QUEUES_COUNT) { printf("Invalid RX queues number %s. Max %u\n", optarg, MAX_RX_QUEUES_COUNT); ioat_usage(prgname); return -1; } break; case 'c': copy_mode = ioat_parse_copy_mode(optarg); if (copy_mode == COPY_MODE_INVALID_NUM) { printf("Invalid copy type. Use: sw, hw\n"); ioat_usage(prgname); return -1; } break; case 's': ring_size = atoi(optarg); if (ring_size == 0) { printf("Invalid ring size, %s.\n", optarg); ioat_usage(prgname); return -1; } break; /* long options */ case 0: break; default: ioat_usage(prgname); return -1; } } printf("MAC updating %s\n", mac_updating ? "enabled" : "disabled"); if (optind >= 0) argv[optind - 1] = prgname; ret = optind - 1; optind = 1; /* reset getopt lib */ return ret; } /* check link status, return true if at least one port is up */ static int check_link_status(uint32_t port_mask) { uint16_t portid; struct rte_eth_link link; int ret, link_status = 0; printf("\nChecking link status\n"); RTE_ETH_FOREACH_DEV(portid) { if ((port_mask & (1 << portid)) == 0) continue; memset(&link, 0, sizeof(link)); ret = rte_eth_link_get(portid, &link); if (ret < 0) { printf("Port %u link get failed: err=%d\n", portid, ret); continue; } /* Print link status */ if (link.link_status) { printf( "Port %d Link Up. Speed %u Mbps - %s\n", portid, link.link_speed, (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? ("full-duplex") : ("half-duplex")); link_status = 1; } else printf("Port %d Link Down\n", portid); } return link_status; } static void configure_rawdev_queue(uint32_t dev_id) { struct rte_ioat_rawdev_config dev_config = { .ring_size = ring_size }; struct rte_rawdev_info info = { .dev_private = &dev_config }; if (rte_rawdev_configure(dev_id, &info) != 0) { rte_exit(EXIT_FAILURE, "Error with rte_rawdev_configure()\n"); } if (rte_rawdev_start(dev_id) != 0) { rte_exit(EXIT_FAILURE, "Error with rte_rawdev_start()\n"); } } static void assign_rawdevs(void) { uint16_t nb_rawdev = 0, rdev_id = 0; uint32_t i, j; for (i = 0; i < cfg.nb_ports; i++) { for (j = 0; j < cfg.ports[i].nb_queues; j++) { struct rte_rawdev_info rdev_info = { 0 }; do { if (rdev_id == rte_rawdev_count()) goto end; rte_rawdev_info_get(rdev_id++, &rdev_info); } while (rdev_info.driver_name == NULL || strcmp(rdev_info.driver_name, IOAT_PMD_RAWDEV_NAME_STR) != 0); cfg.ports[i].ioat_ids[j] = rdev_id - 1; configure_rawdev_queue(cfg.ports[i].ioat_ids[j]); ++nb_rawdev; } } end: if (nb_rawdev < cfg.nb_ports * cfg.ports[0].nb_queues) rte_exit(EXIT_FAILURE, "Not enough IOAT rawdevs (%u) for all queues (%u).\n", nb_rawdev, cfg.nb_ports * cfg.ports[0].nb_queues); RTE_LOG(INFO, IOAT, "Number of used rawdevs: %u.\n", nb_rawdev); } static void assign_rings(void) { uint32_t i; for (i = 0; i < cfg.nb_ports; i++) { char ring_name[RTE_RING_NAMESIZE]; snprintf(ring_name, sizeof(ring_name), "rx_to_tx_ring_%u", i); /* Create ring for inter core communication */ cfg.ports[i].rx_to_tx_ring = rte_ring_create( ring_name, ring_size, rte_socket_id(), RING_F_SP_ENQ | RING_F_SC_DEQ); if (cfg.ports[i].rx_to_tx_ring == NULL) rte_exit(EXIT_FAILURE, "Ring create failed: %s\n", rte_strerror(rte_errno)); } } /* * Initializes a given port using global settings and with the RX buffers * coming from the mbuf_pool passed as a parameter. */ static inline void port_init(uint16_t portid, struct rte_mempool *mbuf_pool, uint16_t nb_queues) { /* configuring port to use RSS for multiple RX queues */ static const struct rte_eth_conf port_conf = { .rxmode = { .mq_mode = ETH_MQ_RX_RSS, .max_rx_pkt_len = RTE_ETHER_MAX_LEN }, .rx_adv_conf = { .rss_conf = { .rss_key = NULL, .rss_hf = ETH_RSS_PROTO_MASK, } } }; struct rte_eth_rxconf rxq_conf; struct rte_eth_txconf txq_conf; struct rte_eth_conf local_port_conf = port_conf; struct rte_eth_dev_info dev_info; int ret, i; /* Skip ports that are not enabled */ if ((ioat_enabled_port_mask & (1 << portid)) == 0) { printf("Skipping disabled port %u\n", portid); return; } /* Init port */ printf("Initializing port %u... ", portid); fflush(stdout); ret = rte_eth_dev_info_get(portid, &dev_info); if (ret < 0) rte_exit(EXIT_FAILURE, "Cannot get device info: %s, port=%u\n", rte_strerror(-ret), portid); local_port_conf.rx_adv_conf.rss_conf.rss_hf &= dev_info.flow_type_rss_offloads; if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE) local_port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MBUF_FAST_FREE; ret = rte_eth_dev_configure(portid, nb_queues, 1, &local_port_conf); if (ret < 0) rte_exit(EXIT_FAILURE, "Cannot configure device:" " err=%d, port=%u\n", ret, portid); ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd, &nb_txd); if (ret < 0) rte_exit(EXIT_FAILURE, "Cannot adjust number of descriptors: err=%d, port=%u\n", ret, portid); rte_eth_macaddr_get(portid, &ioat_ports_eth_addr[portid]); /* Init RX queues */ rxq_conf = dev_info.default_rxconf; rxq_conf.offloads = local_port_conf.rxmode.offloads; for (i = 0; i < nb_queues; i++) { ret = rte_eth_rx_queue_setup(portid, i, nb_rxd, rte_eth_dev_socket_id(portid), &rxq_conf, mbuf_pool); if (ret < 0) rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d,port=%u, queue_id=%u\n", ret, portid, i); } /* Init one TX queue on each port */ txq_conf = dev_info.default_txconf; txq_conf.offloads = local_port_conf.txmode.offloads; ret = rte_eth_tx_queue_setup(portid, 0, nb_txd, rte_eth_dev_socket_id(portid), &txq_conf); if (ret < 0) rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d,port=%u\n", ret, portid); /* Initialize TX buffers */ tx_buffer[portid] = rte_zmalloc_socket("tx_buffer", RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0, rte_eth_dev_socket_id(portid)); if (tx_buffer[portid] == NULL) rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n", portid); rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST); ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid], rte_eth_tx_buffer_count_callback, &port_statistics.tx_dropped[portid]); if (ret < 0) rte_exit(EXIT_FAILURE, "Cannot set error callback for tx buffer on port %u\n", portid); /* Start device */ ret = rte_eth_dev_start(portid); if (ret < 0) rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n", ret, portid); rte_eth_promiscuous_enable(portid); printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n", portid, ioat_ports_eth_addr[portid].addr_bytes[0], ioat_ports_eth_addr[portid].addr_bytes[1], ioat_ports_eth_addr[portid].addr_bytes[2], ioat_ports_eth_addr[portid].addr_bytes[3], ioat_ports_eth_addr[portid].addr_bytes[4], ioat_ports_eth_addr[portid].addr_bytes[5]); cfg.ports[cfg.nb_ports].rxtx_port = portid; cfg.ports[cfg.nb_ports++].nb_queues = nb_queues; } static void signal_handler(int signum) { if (signum == SIGINT || signum == SIGTERM) { printf("\n\nSignal %d received, preparing to exit...\n", signum); force_quit = true; } } int main(int argc, char **argv) { int ret; uint16_t nb_ports, portid; uint32_t i; unsigned int nb_mbufs; /* Init EAL */ ret = rte_eal_init(argc, argv); if (ret < 0) rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n"); argc -= ret; argv += ret; force_quit = false; signal(SIGINT, signal_handler); signal(SIGTERM, signal_handler); nb_ports = rte_eth_dev_count_avail(); if (nb_ports == 0) rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n"); /* Parse application arguments (after the EAL ones) */ ret = ioat_parse_args(argc, argv, nb_ports); if (ret < 0) rte_exit(EXIT_FAILURE, "Invalid IOAT arguments\n"); nb_mbufs = RTE_MAX(nb_ports * (nb_queues * (nb_rxd + nb_txd + 4 * MAX_PKT_BURST) + rte_lcore_count() * MEMPOOL_CACHE_SIZE), MIN_POOL_SIZE); /* Create the mbuf pool */ ioat_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", nb_mbufs, MEMPOOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id()); if (ioat_pktmbuf_pool == NULL) rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n"); /* Initialise each port */ cfg.nb_ports = 0; RTE_ETH_FOREACH_DEV(portid) port_init(portid, ioat_pktmbuf_pool, nb_queues); /* Initialize port xstats */ memset(&port_statistics, 0, sizeof(port_statistics)); while (!check_link_status(ioat_enabled_port_mask) && !force_quit) sleep(1); /* Check if there is enough lcores for all ports. */ cfg.nb_lcores = rte_lcore_count() - 1; if (cfg.nb_lcores < 1) rte_exit(EXIT_FAILURE, "There should be at least one slave lcore.\n"); if (copy_mode == COPY_MODE_IOAT_NUM) assign_rawdevs(); else /* copy_mode == COPY_MODE_SW_NUM */ assign_rings(); start_forwarding_cores(); /* master core prints stats while other cores forward */ print_stats(argv[0]); /* force_quit is true when we get here */ rte_eal_mp_wait_lcore(); uint32_t j; for (i = 0; i < cfg.nb_ports; i++) { printf("Closing port %d\n", cfg.ports[i].rxtx_port); rte_eth_dev_stop(cfg.ports[i].rxtx_port); rte_eth_dev_close(cfg.ports[i].rxtx_port); if (copy_mode == COPY_MODE_IOAT_NUM) { for (j = 0; j < cfg.ports[i].nb_queues; j++) { printf("Stopping rawdev %d\n", cfg.ports[i].ioat_ids[j]); rte_rawdev_stop(cfg.ports[i].ioat_ids[j]); } } else /* copy_mode == COPY_MODE_SW_NUM */ rte_ring_free(cfg.ports[i].rx_to_tx_ring); } printf("Bye...\n"); return 0; }